So I had a Socrative problem

socrative is dum

Directions are to simplify. Answer is obviously c, because it is the only one with y in the denominator.

Why didn't they move $x^{1/3}$ to the denominator?


It looks like they are choosing to "rationalize the denominator", as if $x$ and $y$ are rational numbers. If we have $x=2$ and $y=3$, for example, it's often nicer to think about $\frac{\sqrt[3]{2}}{12}$ instead of $\frac{1}{2^{4/3}3}$.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.